Minimum roof pitch is the lowest angle at which a roof can be designed so the roof covering remains watertight.
Roof tiles for 15 degree pitch.
It is uncommon to find a roof below 15 but for those very low pitch applications there are interlocking clay pantiles available suitable for use down to 12 5.
They can also be used on low pitched roofs such as the sandtoft 20 20 tile which is a highly popular clay option that can be installed on pitches of 15.
Low pitch roof tiles are thought of as those that are suitable for laying on roofs at 20 degrees or less.
Low pitch roof slates.
What does minimum roof pitch mean.
Granular coated tiles are only suitable for pitches above 17 5.
Down to 22 5 degree pitches smooth with a headlap of 75mm.
This low pitch roof tile gives the appearance of slate without the cost or the high maintenance.
The roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need.
Manufactured from 100 recycled materials eco slate is available in grey and old world red.
Eco slate is an environmentally friendly man made slate alternative that can be installed on any pitched roof from 10 to 90.
A 12 12 pitch roof has a pitch angle of 45.
Traditionally a minimum roof pitch of 20 was recommended in bs 5534 but modern tiles and slates have now been designed for applications as low as 15.
Marley mendip this tile can be laid to a minimum of 15 provided that the headlap is 100mm and you choose a smooth finish tile.
We also provide a number of other low pitch concrete interlocking solutions such as the mendip and wessex tiles each able to perform at pitches of 15 degrees and our new mendip 12 5 can be used at an even lower pitch of 12 5.
All of our products are offered competitive prices.
Where the minimum pitch for clay pantiles used to be 30 tiles like the redland cathedral pantile can be pitched as low as 22 5.
Down to 17 5 degree pitches smooth with a headlap of 100mm.
After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.
To convert between american roofing ratios and pitch degrees follow these steps.
Popular applications include extensions where windows or planning restrictions prevent the use of standard roof tiles.
Find the inverse tangent of the pitch to find the angle in degrees.
Divide the first part of the ratio by 12 to work out the pitch.
What degree angle is a 12 12 pitch roof.